GfG Weekly Coding Contest 207 – All Solutions Available for FREE!

     🔴 LIVE | ✅ GfG Weekly Coding Contest 207 – All Solutions Available for FREE!

 

🚫 NOTE: Don’t copy full code — learn the logic and level up! We’re not responsible for any plagiarism.

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🔥 GFG Weekly Rated Contest 206 – Get All Solutions for FREE! 🚀

🔹 Contest Name: GfG Weekly – 206 (Rated)
📅 Date: 18 May 2025
🕖 Time: 07:00 PM – 08:30 PM IST
📊 Questions: 4 DSA Problems | 100 Marks

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🚨 Note: The Code of Conduct has been updated — make sure to follow the latest rules!!

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👇Scroll down to get all solutions!👇

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NOTE :- Don’t copy the full code — use the logic.
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Q1 Solutions -

class Solution:

    def maxValue(self, arr):

        arr.sort(reverse=True)

        max_value = 0

        current_sum = 0

        

        for i in range(len(arr)):

            current_sum += arr[i]

            value = current_sum - (i + 1) * (i + 2) // 2  # subtract sum of 1 to (i+1)

            max_value = max(max_value, value)

        

        return max_value

Q2 Solutions -

import math

class Solution:

    def countPairs(self, arr):

        # If input is an integer or string of digits, convert to list of digits

        if isinstance(arr, int) or (isinstance(arr, str) and arr.isdigit()):

            arr = [int(digit) for digit in str(arr)]

        

        count = 0

        n = len(arr)

        

        for i in range(n):

            for j in range(i + 1, n):

                diff = abs(arr[i] - arr[j])

                root = int(math.isqrt(diff))

                if root * root == diff:

                    count += 1

        

        return count

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Q3 Solutions -

Q4 Solutions -

Q5 Solutions